im planning on getting a new ipod video, and i have aproximately 23gb of video and 13gb of audio on my computer i want to convert the video from avi to mpeg 4 using new quicktime 7 will the movie change in size? (compressed at i think 768kb) For example how big wold a 2 hour movie in avi be in mp4. I have used 3pg converter for my psp and it verys depending on the setting.